Effect of Posture Feedback Band on Posture Alignment and Pain during a Visual Display Terminal Task

Abstract

　　　Visual display terminal (VDT) tasks induce misaligned posture, resulting in increased neck and shoulder pain. This study investigated the effect of a posture feedback band on posture alignment and pain during a VDT task. Eight healthy individuals participated in which a custom-made posture feedback band with a length sensor sheet was applied to provide postural feedback. All subjects were exposed to Condition C (without the band) and Condition F (with feedback) on separate days during a 20-minute VDT task for all subjects. The angle of the forward head position was significantly smaller in Condition F compared with Condition C, which indicated improvement of the forward head position based on the feedback from the length between both scapulae. Eye, shoulder, and lumbar pain, however, were all significantly increased by the VDT task, both with and without postural feedback.